Sweep-rake.



P; NELSON.

SWEEP BAKE. VAIPLIOATIGISI FILED FEB. 26,1906.

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l ATTORNEYS cra PATENTED .TUNE 18, 1907.

P. NELSON. SWBEP BAKE.

APPLIUATION FILED FEB. 28,'1906.

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y FREDERICK NELsoN, ,or DEIscoLL, NoETII DAKoTA.

swEEPRAKE.

Specioation of Letters Patent. l

Patented June 1s, 1907.

Application len February 26,1906. Serial v11'0- 303,005.

To MZ whom, it may concern:

Be it known that I, FREDERICK NELSON, a citizen of the United States,and a resident of Driscoll, in the county of Burleigh and State of NorthDakota, have invented a new and Improved Sweep-Rake, of whic-h thefollowing isa full, clear, and exact description.

The purpose of the invention is to provide a construction of rakewherein when the team is backed to discharge a load a sweep bar will beautomatically drawn over the teeth to impart the initial movement to theload, and wherein further the moment the team is started forward orcommences to4 pull the said sweep bar will be automatically 1rlestiredto its normal position close to a rake Another'purpose of the inventionis to so mount the rake teeth on the rake head that they may be turnedon their bearings, and to bevel the forward ends of the teeth at oneside, and also to provide means for simul' taneously imparting to suchteeth a half turn, or any desired fraction thereof, so as to adjust theoints of the teeth to suit the character o the straw and the ground overwhich the rake is drawn.

The invention consists in the novel construction and combination of theseveral parts, as will be hereinafter fully set forthand pointed out inthe claims.

Reference is to be had to the accompanying drawingls forming a part ofthis' specification, in whic similar. characters of reference indicatecorresponding` parts in all the iigures.

Figure 1 is a perspective view of the improved rake; Fig. 2 is alongitudinal section through the rake; and FigfS-is a detail rearelevation of a portion of'theshifting mechanism for the teeth, andaflrear view of one of the teeth connected with the said mechanism.

A represents the head of the rake, which head may be of any desiredconstruction. As shown it consists of a rear beam 10, a forward beam 11parallel with and suitably spaced from the rear beam, tongues or poles12 and 1,2a which connect the said beams 10 and 11 at their ends, endsills 13 and intermediate connecting straps 13,

The tongues or poles 12 and 12aL are given an upwardJ and forwardinclination and are spaced from the forward beam 10 by blocks 12b ofsuitable height. The head is suported a suitable distance above theground y wheels 16, which turn upon axles 17 secured to brackets 18 atthe under sides of the connectin straps 13a. The seat 14 is located at te rear central portion of the head A, supported by a suitable bracket15.

An evener B is centrally pivoted upon the tongue or pole 12 midwaybetween. the beams 10 and 11 of the head A, and a similar evener B ispivoted in like manner upon the pole or tongue 12a. The swingletree 19is connected with the outer end of the evener B, and a secondswingletree 19a is connected with the outer end of the evener B. A'neckyoke 20 is centrally pivoted to the forward. end of the pole or tongue12, and a corresponding neck yoke 2()a is pivoted to the forward end ofthe pole or tongue 12a, said neck yoke being shown broken away at theouter end inFig. 1

ln connectionwith the eveners B and B and the neck yokes 20 and 20a, asweep bar or board C is employed, adapted for sliding movement over therake teeth D. The sweep bar or board C normally occupies a positionclose to the forward edge of the forward head beam 11, as is illustratedin Figs. 1 and 2, and a link 21 connects the inner end of the evener Bwith the sweep board, while a corresponding link 21L connects the saidsweep board with the inner end of the evener B, while a longer link 22connects the inner end of the neck yoke 20 with the sweep board and acorresponding link 22a connects the inner end of the neck yoke 20a withthe sweep board. It will thus be observed that the draft animals areharnessed one to the swingletree 19 and the outer end of the neck yoke20, and the other to the swingletree 19a` and the outer end of the neckyoke 20a. In the operation of this ortion of the rake, when the team isbacllfed to discharge the ha y from. the rake the inner ends of the neckyokes are carried forward and likewise the inner ends of the evenersthereby causing the sweep board (l to be drawn forward by the links 22and 22EL to start the load from off the rake teeth, while the rear links21 and 21.a are moved forward. to permit the links 22 and 22L to act.from its load and the team is started forward, the inner ends of theneck yokes resume their inwardly inclined position, shown in Fig. 1, andthe inner ends of the eveners are carried rearward, thus causing thesweep board to be drawn back to its 'normal position, in which positionit remains until the team is again backed.

In order to prevent the sweep board from After the rake has beenrelieved assuming a diagonal position upon the teeth should. one animalback and the other start forward when the rake has been stationary, aguide device is provided, consisting of a slide 23 having an upturnedrear end 24s, which slide is attached to the front central portion ofthe sweep board as is shown at 25 in Fig. 2, and said .slide is made toloosely pass through a guide sleeve or recessed plate 26, secured uponthe upper face of the forward beam 1l of the head.

rlhe rake teeth D are preferably circular in cross section, and areinclined or beveled upon one side at their forward ends, as is shown atd in Figs. l and 2,4 rendering their forward terminals pointed. The saidrake teeth are mounted to turn in bearings 27 secured to the under sideof the beams l() and 11 of the rake head, and extend tothe rear edges ofsaid head. Each rake tooth at its rear end has a sleeve or ferrule 28secured thereon, and each ferrule at what is normally its upper portionis provided with an enlarged integral All of the ,rake teeth aresimultaneously turned in the same direction when desired A by means of ashifting mechanism., which is as follows: V A hand lever 30 is fulcrumedupon the seat bracket 15, or any other convenient support, and saidlever has a link connection 31 with a shiftingbar 32 that extendstransversely of the head of the rake at its rear, and said shifting baris free to move endwise, actuated by the said lever 30.

The liange 29 of each tooth ferrule 28 is connected with the shiftingbar 32 by two crossed links 33 and 34, one link, the link 33 forexample, being connected with the lefthand end of a flange 29 and theother link 34 having connection with the right-hand end of the sameflange; the links are then crossed, and their upper ends are connectedwith the shifting bar 32 as is shown in Figs. 1 and 3, it beingunderstood that the connections between the links 33 and 34 and -theflanges 29 and shifting bar 32 are pivotal -connect1ons.

Thus by moving the shifting bar to the right or to the left the teethare given a quarter turnand the relation of their beveled faces to theground is changed. ThereforeJ when the rake is used incon'nection withloose and matted hay, rain-beaten hay, or on soft round, the teeth D areturned to bring t eir beveled faces d facing the ground, as is shown byfull lines in Fig. 1 and by dotted lines in Fig. 2 when working on hardground the teeth are turned so as to bring their beveled faces upward,as is shown by positive in Fig. 2, and the teeth are turned with theirbeveled faces downward when going over ruts, or roads, or crossingfields, since when the teeth are in such position their forward ends cannot dig into the ground, as is common withother flange 29, as is shownin Figs. 1 and 3.

forms of rake teeth. It is obvious that by means of the shiftingmechanism described for the teeth, the teeth may be almost instantlychanged in position at any time.

A ferrule or other device is placed upon the rake teeth to prevent themslipping rearward. through the rake head. The guide device 25 permitsthe sweep board to mcve slightly at an angle so that it will not bind,but principally. the sweep board moves straight forward and backward.

Having thus described my invention, I claim as new, and desire to secureby Letters Patent,`

1. A rake, a sweep board mounted for movement over the rake teeth,eveners pivoted at opposite sides of the rake at the rear of the teeth,extensions from the rake, neck yokes pivoted on said extensions at apoint in ad- Vance of the teeth, a swingletree for each evener, andconnections between theinner ends of the neck yokes and the sweepboards, and the inner ends of the eveners and the sweep board, wherebywhen a team is backed the sweep board is carried forward over the teeth,and when the team is started forward the sweep board is automaticallycarried rearward to its normal position.

2. In a rake, a head, teeth-extending from the head, tongues extendingfrom the ends of the head upwardly in direction of the points of theteeth, eveners fulcrumed on the rake head at its side portions,swingletrees con nected with the outer ends of the eveners, neck yokespivoted at the forward ends of the said tongues, a sweep board mountedto slide over the teeth, link connections between the inner ends of theneck yokes and the sweep board, and link connections between the innerends `of the eveners and the said sweep board.

3. In a rake, a head, teeth extending from the head, tongues extendingfrom the ends of the head upwardly in direction of the points of theteeth, eveners fulcrumed on the rake head at its side portions,swingletrees connected with the outer ends of the eveners, neck yokespivoted a't the forward ends of the said tongues, a sweep board mountedto slide over the teeth, link connections between the inner ends of theneck yokes and the sweep board, and link connections between the innerends of the eveners and said sweep board, a slide connected with thecentral ortion of the sweep board, and a socket p ate secured to thesaid head, through which the said slide passes, whereby to comcpel theswee to move straight forwar o all conditions of usage.

ci. rake head and bearings secured to the board rbackwar ,under IOO IIO

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under face of the rake head, teeth mounted to turn in said bearings,said teeth being beveled at one side at their outer ends, a shifting barlocated above the rake head, an o eratmg lever for said bar, and crossedlin con- ISO rules located at the rear ends of the said rake Y teeth,and anelcngated flange located at the upper portion of each ferrule, ashifting bar having end movement over the rake head,' links pivotallyattached to each end of each fiange, which links are crossed andpivotally connected with the shifting bar, a lever, and a linkconnection between the lever and the shifting bar.

6. The combination of a rake, tonguesextending from the rake, evenerspivoted to the rake, devices connected with the tongues and evenersrespectively for the attachment of the draft animals, a sweep board,connections between the said devices on the tongues and the sweep board,and connections between the eveners and the sweep board.

7. The combination with a rake, of a tongue extending from the rake, asweep board slidably mounted upon the rake, an evener pivoted to therake and having one end connected with the sweep board, a' draft deviceconnected to the other end of said evener, a draft device in advance ofthe evener and connected with the tongue, and a link connecting saiddevice on the tongue with the sweep board.

8. The combination with a hay rake, of a sweep board slidably mountedupon the rake, a tongue extendingforwardly from the rake, an evenerfulcrumed to the rear portion of the tongue, a draft device connectedwith y the outer end of said evener, a draft device fulcrumed to thefront end of the tongue, a link pivoted to the inner end of the forwarddraft device and to the sweep board, and means for connecting the sweepboard with the inner end of the evener.

9. The combination with a rake, and its supporting wheels, of a sweepboard slidably mounted upon theA tops of the rake teeth, tongues securedto the rake at opposite sides and extending forwardly therefrom, an

evener fulcrumed to the rear portion of each tongue, a link connectingthe inner end of each evener with the sweep board, a swingletree on theouter end of each evener, a draft attachment fulcrumed to the forwardend of each tongue, and a link connected to the inner end of each ofsaid draft attachments and also connected to the sweep board.

10. The combination with a hay rake, and its supporting wheels, of asweep board slidably mounted upon the rake teeth, tongues secured to therake at .opposite sides and extending forwardly therefrom, lan evenerfulcrumed to the rear portion of each tongue, forwardly extending linksconnecting the inner ends of the eveners with the sweep board, aswingletree connected with the outer end of each evener, neck yokespivoted at the forward ends of each tongue, and a rearwardly extendinglink connecting the inner end of each of said neck yokes with the y saidsweep board.

In testimony'- whereof l havesigned my FREDERICK NELSON.

/Witnesses S. H.- CooNs, FRANK WILTON. f

